Hi my name is Lukasz I am using this service for dns https://www.dnsdynamic.org/ I have a url with this service and I can see my page but the world can't see it, I have a Linksys Powerline and Windows 10 Home 64 bit

Been awhile since I dabbled with Dynamic DNS services as well as LinkSys home firewalls.

However, given that you can see your Web site internally, and not externally (from the Internet), it definitely sounds like your LinkSys Firewall needs to forward incoming HTTP traffic to your Web server.

In order to do so, you need to configure your LinkSys firewall to allow HTTP traffic (Port 80) to your Web server that is behind the firewall.